This review discusses two books: "Biological Properties of Immunoglobulins" and "Relativistic Quantum Fields." The first book, edited by R. A. Good and G. W. Litman, is a multi-authored work with 16 chapters, each written by different authors. The chapters vary in length and focus, but the most important topics are well-covered. The book emphasizes classical immunochemistry, particularly the antibody-antigen interaction, and includes detailed data on the structure and function of antibody-combining sites. It also covers topics such as the structural basis of antibody effector functions and the evolution of immunoglobulins. Some chapters, like the one by Karush on antibody affinity, are particularly relevant to understanding monoclonal antibodies. The book is well-structured, with the first six chapters making up more than half of the book. However, the latter chapters are less comprehensive and may give a misleading impression of the book's content. The book ends with an overview of membrane immunoglobulins, highlighting outstanding problems and prevailing opinions at the time of publication. The second book, "Relativistic Quantum Fields" by C. Nash, is a detailed introduction to field theory, focusing on the λφ⁴ theory and quantum electrodynamics (QED). It covers functional differentiation and integration, dimensional regularization, and the Callan-Symanzik equation. The book is well-written and provides a clear introduction to the subject, though it lacks coverage of some important topics, such as spontaneous symmetry breaking in non-abelian theories. The book is recommended for students and researchers in the field.This review discusses two books: "Biological Properties of Immunoglobulins" and "Relativistic Quantum Fields." The first book, edited by R. A. Good and G. W. Litman, is a multi-authored work with 16 chapters, each written by different authors. The chapters vary in length and focus, but the most important topics are well-covered. The book emphasizes classical immunochemistry, particularly the antibody-antigen interaction, and includes detailed data on the structure and function of antibody-combining sites. It also covers topics such as the structural basis of antibody effector functions and the evolution of immunoglobulins. Some chapters, like the one by Karush on antibody affinity, are particularly relevant to understanding monoclonal antibodies. The book is well-structured, with the first six chapters making up more than half of the book. However, the latter chapters are less comprehensive and may give a misleading impression of the book's content. The book ends with an overview of membrane immunoglobulins, highlighting outstanding problems and prevailing opinions at the time of publication. The second book, "Relativistic Quantum Fields" by C. Nash, is a detailed introduction to field theory, focusing on the λφ⁴ theory and quantum electrodynamics (QED). It covers functional differentiation and integration, dimensional regularization, and the Callan-Symanzik equation. The book is well-written and provides a clear introduction to the subject, though it lacks coverage of some important topics, such as spontaneous symmetry breaking in non-abelian theories. The book is recommended for students and researchers in the field.